Winding of cops



WINDING 0F COPS Filed March 25, 1937 3 Sheets-Sheet l July 23, 1940.

W. REINERS ETI' AL WINDING OF COPS Filed March 25, 1957 ssheets-sheet 2w. REINERS ET AL wINDING oF coPs July 23, 1940.

Filed March 25, 1937 3 Sheets-Sheet 3 if IZ 33 --w Patentedvluly ..1940

WINDING yor 4cors Wilhelm Reiners, Gladbach-Rheydt, Gustav Kahlisch,Rheydt, Germany, assignors tovW.

Schlafhorst & Co., Munchen-Gladbach, many, -a corporation of GermanyApplication March 25, 1937, Serial No. 132,944

In Germany April 7, 1936 6 Claims.

The invention relates to a cop winding machine of the .type in which allthe spindles, or a whole group of spindles of a machine, are driven inunison, but the progress of the Winding at each spindle is controlledquite independently of the others. The present invention is animprovement upon thecop winding machines shown in our copendingapplication Serial No. 65,484, illed February 24, 1936, and upon themachines shown in Figs. 8 and 19-21 of our copending application SerialNo. 71,266, filed March 27, 1936.

In the said copendig applications the thread is required to follow thebuilder mechanism at all timesfand cannot be returned to the bottom ofthe cop', which is the end first wound, when the building of the cop iscompleted, without the builder mechanism. According to our presentinvention the thread itself can be returned to the bottom of the copwhen the build-up of the cop is completed, either with or without thethread guide.

By this means it is, for example, possible to use a feed feeler devicewhich engages the chase of the package in such a way that local frictionin the outermost position is avoidedfand the compactness of the yarn isincreased by the at contact of the control member. In' addition there isthe advantage of considerable smp1ica. tion of construction. In theembodiment shown in the said copending applications a feeler wheel isused, which cannot be released from the thread guide. its original.position by means of the thread guide, the feed feeler member must beswung out of operative position so that it can be moved past the cop atthe side thereof without touching the package. According to our presentinvention, however, any desired feed feeler member (feeler wheel, theknown hollow cone or feeler cone or the like) may remain in operativeposition, even when the yarn, with or without the thread guideco-operatin'g with the feeler member .is returned to its originalposition. Embodiments of the invention are shown by way of example inthe accompanying drawings, in which:

Fig. l is a side view showing one form of construction, partly insection; y f

' Flg.2 is a partial side view thereof, 'after a .cop has been released,partly in section; Fig. 3 is a partial iront view; I

lilg. v4 is asideA elevation, partlyin section, of another embodiment. L1 'I'he machine may have any desirednumberof spindles 4 driven from amain drive shaft I. 'I'he To enable the thread to be returned to l pawl502 pivoted at 50| on a bracket 50|;

drive for each spindle is taken 0E through bevel gears 2, 3, a clutch|24, |25, and a slide coupling 4a in which the spindle 4 isnon-rotatably guided.

A thread supporting device in the form'of a coptube I3 is held tospindle 4 by a tail stock com- 5 prising a socket 6 journalled in abearing which is slidably mounted in a bearing '8, under the v iinfluence of a compression spring 1a. 'Ihe bearhas a rouer saab heldagainst acam :n3 by a 15 spring 308e. The cam is xed upon a-shat 302lwhich is driven by a worm wheel 30| meshingY with a worm 300 on slidecoupling 4a. The clutch half |25 is pressed to the clutch half |24 by aspring 508 and can be retracted by 20 a lever 501 operated by either oftwo rods 505, 505. The rod 506 is urged to the left by a spring 504 andbears a lug 503 .engaged by a bell crank 'I'he vertical arm 499 ofthepawl is engaged by a rod 25 498 sliding in a bearingI 491 and adapted tobe operated by a. cam 496 of a thread guide 29 pivoted at 28 on abracket 495. When the thread guide is pulled to the right by the thread,which is indicated by a dot and dash line,'the rod 505 30 can be pulledto the right by .handle 494 'to engage the lug `503 with pawl 502,thusreleasing the clutchvhalf |25 tothe action of spring 508. When thethread breaks, the thread guide 29 falls to the left and cam 496 thrustsrod 498 against 35 pawl 499, SOL-releasing rod 506 to the action ofspring 504, which predominates over spring 508 and disengages theclutch. The rod 505 is operated to release the clutch by a lug 493 onbearing 5, when the spindle unit is moved to the left 40 beyond itsnormal traverse movement at the completion of a cop, in a manner to bedescribed presently. l y

. The machine is designed to dotrthe completed cops and to don the'emptytubes and beginthe 45 winding oi the'new cop automatically. Theseautomatic-operations are governedfor eachspin-f `dle independentlybyfaseparate group Iof cams (Figs. Iland 2) 339e, ",565, and 33Ic. Theseone revolutionto a gear =425 driven by a. gear423 ona shaft-422,1whichmay derive its pqwerfrfmj,

means not shown. The

the main'drive shaft l by one revolution clutch for coupling the camunit to the gear 425 may be of the construction shown in Figs. 22-26a ofour copending application Serial No.' 71,266. In the present drawings wehave only indicated a bell crank lever 4|9, 420 pivoted on a shaft 339eon bracket 43|. The bell crank lever corresponds to the lever of the.same number in the saidvcopending application Serial No. '71,266"and isadapted to allow the clutch to become engaged when rocked in clockwisedirection and to disengage the clutch when rocked back into the positionshown in Fig. 1.

'I'he completed cop is doffed by retracting socketV 6 lfrom spindle 4,by mechanism now to be described. On a shaft Ib of bearing I is atransverse pin 90 engaged by the forked end of a lever 34| pivoted at34Ia on rod 9. The outer end 340 of rod 9 is engaged by the `end of alever 339, 3391) pivoted on shaft 339a'. Thelower ann 3391) is actuatedby cam 339e to move the rod 9 to the left beyond its limit of leftwardmove- -ment causedv by the traverse mechanism. In this movement a'pin34|b on lever 34| strikes a stop provided at their upper ends withpivotedrests 3|3a (Fig. 3) normally held in the position shown inFig. 3against a pin 3|3b by a spring 3|3c. The' .bottom tube I3 in theymagazine lies lin these rests and uponrmovement of the carriers 3|3 tothe left in Fig. 3 is conveyed to a position coaxial with the spindle 4and socket `6, the surface 3|3d of the carriers 3|3 meanwhile holding upthe other tubes in the magazine. The swinging of the carrier arms 3|3 iscontrolled by a lever 563 engaging cam 566 (Fig. 2). 'Ihe swingto theleft of the carrier arms 3|3 occurs just after the release of thecompleted cop and before the return of the rod 9 to the right, whilethesocket 6 is held retracted' by the lever- 34|, as shown in Fig. 2.The

' carrier is held under the spindle until after the .in the frame of'the machine.

new tube has been engaged by the socket 6 and spindle 4 bynthe return-ofrod 9 to the right. I'hereupon the carrier arms 3| 3 are swung back, therests 3|3a pivoting to release the donned cop tube and, upon return ofthe carrier arms to the position shown in Fig. 3, receiving the next coptube from the magazine.

A thread guide I4 is mounted upon a carrier I5, which is slidable upon arod I 6a xedly mounted The carrier I is also stabilized by a second rod332 likewise xed in the -frame of the machine. The builder mechanismcomprises a cone 330 adapted to bear against the nose of the cop andsupported upon a holder 33|., The holder is slidably mounted upon shaft33 2 and stabilized by Ashaft |6a. The holder 33| is provided with asleeve 333 forminga chamf surface of sleeve 333.

ber which contains clutch balls 334. The clutch bans-are heldin abushing 33s which is pressed to the carrier I5 engaging a pin 343 ofholder 33| In accordance-with theinventlon means are provided fordisconnecting the thread guide from the builder cone and returning it tothe bottom of r the cop independently. For this purpose a lever 44 ispivotally mounted upon a bracket 45 and is cam unit begins to revolvethe link 42 is released by cam 4| and lever 44 is swung tothe left byspring 44a. It first encounters a flange 342a of catch 342 and raisesthe catclnfrom pin 343. Im'

mediately thereafter it engages a pin 49 of carrier I5 and swings thecarrier to the position shown in .Fig. 2, thus bringingv the threadagainst iiange 4b of the spindle in position to be clamped by the buttof the new tube I3. The thread trailing from the completed cop is alsobrought by,l this movement between the jaws of a pair of shears I0,which are actuated by carrier arms 3|3 to cut off the thread as the newtube is brought into position. Meanwhile, the builder cone 330 remainsin the position it had reached when the winding of the cop wascompleted., lAs shown in Fig. 2, in this position the builder coneleaves a clearA path forthe new tube to be moved over to* l the spindleand is ready to be pushed over the new tube by a mechanism now to bedescribed. A' lever 331 is pivoted on bracket 45 and is normally urgedto the left by spring 331e. A pitman 336 connected to lever 331 has ahook-shaped end 336a by which it is guided in a Agroove of the cam unit,this end being provided with a pin 336| riding upon a cam 336e. 'I'heend ofl lever 331 reaches up to engage bushing 338 when the lever swingsto the left, which it does near the close of the donning operation, whencam 336e releases it to the action of spring 33'Ia`. The lever 331thereupon releases clutch balls 334 and slides the builder cone holder33| to the left, untilthe latter comes up against thread guide carrierI5. As the holder 33| lmoves into this position pin 343 lifts catch 342vand becomes reengaged thereby. Meanwhile, the winding of the new copwas begun themoment rod 9 moved far enough to'the -right to release rod505 and allow clutch |24, |25 to become reengaged, which occurred justafterr For this purpose the builder cone holder 33| bears a lug 33|awhich comes to abu't against a rod 33Ib l slidably mounted in the frameof the machine and engagingv at its outer end the upper arm of bellcrank lever 420, 4|9, which controls the engagement of the cam unitclutch. The machine described operates in the following manner:

A cop tube I3 is set up between the spindle 4 and .socket 6 and thethread is drawn down under thread detector roller 29 and over threadguide roller |4 and clamped between the butt of the cop tube and theange 4b of the spindle. The magazine 561V is iilled with empty coptubes. The rod 506, which has been standing in its-,left

end position (Fig. 1) holding out the clutch disk |25 is puued forwardby handle 494 untu the dog 502..;lrops into place behind lug 602. Thisthrows in the 'clutch disk |26 and the spindle 75 begins to rotate. Atthis time the thread guide is in its left end position shown in Fig. 2and the thread begins to wind upon the bottom end of vthe cop tube. I'hespindle 4 is reciprocated by cam 303, causing the thread to be laid uponthe cop tube in a cross winding of about the extent of the conical4bottom of the cop tube. The builder cone support 33| has the positionrelativeto the thread guide support |5 shown in Fig. 1, the two supportsbeing connected by the hook 342. 'Ihey are, however, in a position moreto the left than that shown in Fig. v1, opposite the bottom of the coptube.A As the thread begins to accumulate on the cop tube it touches thebuilder cone 330 at the extreme right end' of the traversing. movementof the spindle and pushes the builder cone slightly to the right, thisbeing the direction in which the builder cone support is free to move onshaft 332. The thread guide |4 is moved to the right with the buildercone and thus the field of traverse progresses along the cop tube,building the winding into a cop. The windingproceeds until lug 33|a onthe builder cone support strikes rod 33|b and rocks the bell crank lever420, 4|9 counterclockwise to throw in the clutch which drives the camunit 339e, 4|, 566, and 336c.

The rst cam of the cam unit to act is the cam 339e, which rocks the bellcrank lever 339,

339b counterclockwise and thrusts the rod 9 to the left. This overcomesthe effect of the traversing cam 303, the motion of which is nowentirely taken up by spring 308e. During 'the leftward movement of thebar 9 the nger 493. strikes rod 505 and throws the clutch disk |25 outof engagement, stopping .the rotation of the spindle. Also, pin 34|bstrikes stop 342 and turns lever 34| in clockwise direction about pivot34|a, thus retracting the socket 5 from the end of the cop tube andreleasing the cop from the spindle.

The next cam to take eiect is the cam 4|,

which releases the pin 42b of pitman 42 and allows spring 44a to throwlever 44 to the left. This lever first strikes hook 342 and vdisconnectsthe thread guide support from the builder cone support. 'I'hen itstrikes pin 49 and throws'the thread guide support to the left until itreaches the position shown in Fig. 2, leaving the builder v cone at thelast wound endof the cop; 'I'he released cop slides down chute |03 on toconveyor "l 05, its trailing thread being guided by the return movementof the thread guide I4 into the position shown in Fig. 2, where it liesagainst the iiange 4b of the spindle 4. In this movement the threadpasses between the blades of the shears |,|0, ready to be severed by theshears when theyl are actuated presently.

Ihe next cam to take effect is cam 56B (Fig. 2), which rocks thetransfer device 3|3. The transfer device carries an empty cop tube fromthe magazine 561 into position between the spindle 4 and socket 6 andalso actuates the shears y| |0 to sever the trailing endv of thread.Thereafter the bell crank lever 339, 3391i is'released by cam 339e andthe rod Bois restored by spring 308e to the position in which pin 34| isremoved from stop 342. The socket 6 is thrown against the end of coptube |3 by spring 1a and throws the cop tube against the flange 4b,clamping the thread. The transfer device 3|3 is then rocked to the right(Fig. 3) and another empty cop tube settles into its tube holders 3| 3a.g

The release of rod 9 by bell crank lever 339, 33912 allows finger 493 tomove to the right suiiiciently to release rod 505 and allow spring 508to reengage clutch disk |25. This starts the winding of the new cop.Shortly after the transfer device 3|3 has been restored to normalposition the cam 336e releases the pin 33511 of`pit-V man 335 and allowsspring 331a to throw `lever 331 to the left. The lever 331 ilrst strikesbushing 33|!y and pushes the latter in against the action of spring33811, thus releasing the balls 334 from shaft 332-.. Further travel ofthe lever 331' slides the builder cone support 33| to the left, thebuilder cone 330 moving over the newly positioned cop tube |3. When thebuilder cone support 33| reaches the thread guide support i5 twosupportstogether again. The levers 44 and 331 are restoredto theposition shown in Fig. 1 by their respective cams 4| and 336e. Thewinding thus proceeds automatically and will continue as long as newcoptubes are supplied to the magazine 561.

Instead of making the thread guide` and the builder mechanism separable,so that the thread guide can be returnedv to thebase of the copindependently of the builder/mechanism, we may simply move the threaditself back to the base of the cop without changing the position of thethread guide. In this case the thread guide and builder mechanism mayconstitute an inseparable unit. An example of such a machine is shown inFig. 4. The separate thread guide car-f' rier I5 of Fig. 1 is eliminatedand-the thread.

guide |4 is mounted directly on the builder cone holder 33|. In place ofthe lever 44 of Fig. 1 for restoring the thread guide, a lever 344 isprovided,

which bears a pin 345 adapted to engage the .thread between the threadguide I4 and the oop -the hook 342 passes over pin 343 and locks the tocause a progressive movement of said thread guide device with respect tosaid supporting device in a direction parallel to the axis of rotationof said supporting device, said movement conforming to, and beingcontrolled by, the rate of accumulationl of windings of thread on saidsupportingdevice and being adapted to build the winding body into a cop;and means acting automatically upon the attainment of a given length bythe cop to return the thread to the rst-wound end of the cop while saidbuilder means remains at the last-wound end of the cop.

2. In a cop winder, a rotary supporting device on which to wind thread,a thread guide device adjacent said supporting device, means forreciprocating one of said devices with respect to the other, buildermeans connected with said thread guide device adapted to feel theaccumulating windings of thread on said supporting device and to cause aprogressive movement-of said thread guide device with respect to saidsupporting device in a direction parallel to the axis of rotation ofsaid supporting device; said movement conforming to, and beingcontrolled by, the rate of accumulation of windings of thread on saidsupporting device and being adapted to build -the winding body into acop; and means acting auto-y matically upon vthe attainment of a givenlength the other, builder' means connected with said' thread guidedevice adapted to feel the accumulating windings of thread on saidVsupporting device and to cause a progressive movement of said threadguide device with respect to said supportling device in a directionparallel to the axis of rotation of said supporting device, saidmovement conforming to, and being controlled by, the rate ofaccumulation of windings of thread on said supportingdevice and'beingadapted to build thev winding body into a cop; and means actingautomatically upon the attainment of a given length by the cop-to engagethe thread ,at a point between said thread guide and the cop toreturnthe thread) to the first-wound end of the cop while v said buildermeans remains at the last-wound end of the cop.

4. In a cop Winder, a rotary supporting device von which to wind thread,a thread guide device adjacent said supporting device, means forreciprocating one of said devices with respect to the other, buildermeans detachably connected to said thread guide device', said threadguide device and said builder means being mounted so as tobeindependently slidable parallel to the axis of said supporting device,vsaid, builder means being adapted to feel the accumulating windings ofthread on said supporting device and to cause a progressive movement ofsaid thread guide device with respect to said supporting device in a di`rection parallel to the axis of rotation of said l supporting device,said movement conforming to,

and being controlled by, the rate of accumulation of windings of threadon said supporting device .and being adapted to build the winding bodyinto a cop; a control lever; and means acting automatically upon theattainment of a given length by the cop to move said control lever todisengage the connection between said thread guide device and saidbuilder means and to return said thread guide device to the rst-woundend of the cop while, said builder means remains at the lastwound end ofthe cop.

5. In a cop Winder, a rotary supporting device on which to wind thread,av thread guide device adjacent said supporting device, means forreciprocating one of said devices with'respect to the other, buildermeans adapted to feel the accumulating windingsuof thread of saidsupporting device, a snap hook detachably connecting said buildermeansto' said thread guide device, said builder means being adapted tomove said thread 4guide device progressively with respect to saidsupporting devicein va direction parallel to the axis of rotation ofsaid supporting device, in accordance with Atherrate of accumulation ofwindings of thread on said supporting device, to build the winding bodyinto a cop; means acting automaticallyA upon the attainment of a givenlength by the cop to disengage said snap hook and to return said threadlguide device to the iirst-wound end of the cop while said builder meansremains at the last-wound end of the cop; and means acting subsequentlyto move said builder means back to said thread guide device and toreengage said snap hook.

6. In a cop Winder, a spindle device, a tail stock for holding a coptube to saidspindle device, means for rotating said spindle device, athread guide device adjacent said spindle device, means forreciprocating one of said devices with respect to the other, buildermeans connected with said thread guide device including a v builder coneadapted to feel the windings of thread accumulating on the cop tube andto cause a progressive movement of said thread guide device from saidspindle device toward said tail stock, said move ment conforming to, andbeing controlled by, the

rate of accumulation of windings of Ythread on the tube and beingadapted to -build the winding body into acop; means actingautomaticallyupon the attainment of a given length by the cop to returnthe thread to said spindle while said builder means remains near saidtail stock, means acting automatically to move said tail stock torelease the wound cop, means acting automatically to insert a new tubebetween said spindle device and said tail stock, and means actingautomatically to move said builderrcone over the new tube into proximityto said spindle device.

WILHELM REINERS. GUSTAV KAI-ILISCH.

